Hallgrímsson (October 17, 1905 – September 16, 1984) was an Icelandic businessman and political figure in the mid-twentieth century.
[2] On November 17, 1928, he married Margrét Þorbjörg Thors, daughter of the business magnate Thor Philip Axel Jensen, by whom he had Margrét Þóra Hallgrímsson and Elína Benta.
[2] After moving to Reykjavík, Hallgrímur began working for Shell Oil.
[2] In 1925 Hallgrímur became the chairman of Shell in Iceland until 1956 and the director of Olíufélagið Skeljungs from the same year until 1971.
[4] He maintained close contact with the UK,[2] and received the highest honour that the British government bestows on foreigners, Commander of the Order of the British Empire.